Determine whether the following study is an observational study or an experiment. If the study is should be experiment, identify the control and treatment groups, and discuss whether making the study single- or double-anonymous is necessary. If the study should be observational, state whether it is a respective study, and if so, identify the cases and controls. Over a period of many years, which National Hockey League teams with west dash coast home ice have better records? Question content area bottom Part 1 The study is